Input‐series and output‐series connected modular single‐switch flyback converter operating in the discontinuous conduction mode
| Autor: | Mauro Andre Pagliosa, Telles Brunelli Lazzarin, Ivo Barbi, Rafael Gomes Faust |
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| Rok vydání: | 2016 |
| Předmět: |
Engineering
business.industry Flyback converter 020209 energy 020208 electrical & electronic engineering Flyback transformer 02 engineering and technology Converters Modular design Power (physics) Control theory visual_art Electronic component 0202 electrical engineering electronic engineering information engineering Electronic engineering visual_art.visual_art_medium Electrical and Electronic Engineering business Voltage |
| Zdroj: | IET Power Electronics. 9:1962-1970 |
| ISSN: | 1755-4543 |
| Popis: | This study proposes a modular isolated dc–dc converter, based on the input-series and output-series connection of flyback converters operating in discontinuous conduction mode, as an alternative to provide higher voltage capability for medium-voltage applications (1–10 kV), from low-voltage semiconductors and passive components. The proposed architecture allows the modular system to operate with a simplified control scheme thanks to an intrinsic voltage-balancing mechanism. The voltage-balancing mechanism is investigated by theoretical analysis, both for steady-state and dynamic operations. A small-signal ac modelling of the architecture is developed to design the total output-voltage controller. To experimentally verify the proposed technique, a laboratory prototype system with three single-switch flyback converters, with 3 kW output power, 600 V dc input and output voltages, and 40 kHz of switching frequency was built. |
| Databáze: | OpenAIRE |
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